Unqualified Standards for Office Chair Inspections

The unqualified standards for office chair inspections mainly include the following aspects:

1. Product Flame Retardancy, Caster Wear Safety, Formaldehyde Emission, etc. In inspections conducted by the State Administration for Market Regulation, unqualified items for office chairs often involve non-compliance with flame retardancy standards, poor caster wear performance, and excessive formaldehyde emissions. Among these, office swivel chairs, due to their complex structures, tend to have more concentrated quality issues. For example, insufficient flame retardancy may pose a fire risk; excessive formaldehyde emissions can release harmful gases, and long-term exposure may cause respiratory diseases or allergic reactions.

2. Non-compliance with Stability Standards Stability is a core indicator for assessing the quality of office chairs. The standard stipulates that when a load of 600 Newtons (approximately 120 pounds) is applied to the seat surface, a force of not less than 20 Newtons should be applied horizontally, and the chair should not tip over after the test. If the stability is non-compliant, users may easily tip over when leaning forward, backward, or sitting sideways, leading to accidents such as falls and injuries.

3. Non-compliance with Caster Wear Standards The quality of casters directly affects the service life of office chairs. If the caster wear test is non-compliant, it can result in poor sliding, jamming, or wheel detachment, affecting normal use and even posing safety hazards due to sudden movement.

4. Quality Defects in Five-Star Bases The five-star base is a load-bearing component of swivel chairs. If the material strength is insufficient or there are structural defects, it may break during use, causing users to fall and get injured. For example, plastic five-star bases that do not contain sufficient impact-resistant materials or metal five-star bases with poor welding are all serious quality issues.

5. Safety Hazards of Gas Springs Gas springs are key components of swivel chairs, and non-compliance can manifest in the following ways:

• Extreme Explosion Risk: Insufficient density of inert gas, thin tube walls, aging and cracking, or excessive temperature due to frequent lifting and lowering may cause explosions.
• Functional Failure: Rapid decline in nominal force leading to difficulty in lifting and lowering, or poor sealing and impure gas causing failure in hot or cold environments.
• Lack of Isolation Measures: The standard requires effective isolation (such as a steel plate) between the gas spring and the seat surface, and the thickness of the steel plate must meet the standard; otherwise, puncture injuries may occur.